Question

–What was your brother doing at this time yesterday?
–He was reading a magazine ________ I was writing an e-mail at home.

A．as soon as

B．after

C．until

D．while

Answer 1

D

考查连词的用法。 as soon as“一……就……”； after“在……之后”； until“直到……”；
while“当……时候，和……同时”。由答语“他在读杂志而我在写电子邮件”可知，两个动作同时进行，故选D。